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1. LENGTH AND AGE AT SPAWNING OF ANTARCTIC TOOTHFISH DISSOSTICHUS MAWSONI IN THE ROSS SEA

   male Antarctic toothfish Dissostichus mawsoni from fish sampled in the Ross Sea spanning the 2000-2009 ... spawn in a given year and is therefore appropriate to evaluate spawning stock biomass relative to stock ... vitellogenic phase over at least a 6–12 month period, resulting in a developed batch of oocytes accumulating at ... ) by length. Evidence of skip spawning by females results in a right-shifted ogive, increasing the ...

   Meeting Document : WG-FSA-09/37 : Autor(es): S.J. Parker and P.J. Grimes (New Zealand)

2. Models of Antarctic marine ecosystems in support of CCAMLR and IWC: background

   is currently in draft form open to comment and is being developed to provide an introduction to the ... to the use of ecosystem models in CCAMLR and the IWC and a history of the developmental work in those ... that need to be considered in parameterising a model, providing input data for those models and for ... addressing uncertainties in this process. Lastly, it summarises the modelling platforms being developed in ...

   Meeting Document : CCAMLR-IWC-WS-08/03 : Autor(es): Constable, A.

3. The Role of Fish as Predators of Krill (Euphausia superba) and Other Pelagic Resources in the Southern Ocean

   Abstract:  First attempts were made in the early 1980’s to estimate the krill and pelagic food ... -Antarctic Zone in the late 1980’s and early 1990’s when these areas were exploited commercially and a larger ... taken by mesopelagic fish in the Atlantic Ocean sector only. However, these estimates still have wide ... hydro-acoustic biomass estimates conducted in the late 1980’s and the lack of quantitative food ...

   Meeting Document : CCAMLR-IWC-WS-08/09 : Autor(es): Collins, M.A., Williams, R., Agnew, D.J., Kock, K.-H., Belchier, M., Shust, K.V., Welsford, D., Hanchet, S., Pshenichnov, L., Barrera-Oro, E.

4. Relationship between distribution of Antarctic krill (Euphausia superba) and environmental index MTEM-200 in the Antarctic Ocean throughout the year

   subject since the British Discovery Reports. However, there was no remarkable achievement in particular ... Database. We here focus mean-field (climatologic analysis) in all season. First, we have examined fishing ... occurred in water shallower than 200 m. Furthermore, horizontal distribution of krill fishing points ... concentrated in three waters in the east Antarctic Ocean, the Scotia Sea, and north of South Georgia Island ...

   Meeting Document : WG-EMM-08/32 : Autor(es): M. Naganobu, T. Kitamura and K. Hasunuma (Japan)

5. Uncertainty in acoustic surveys of Antarctic krill

   Abstract:  Studied were four primary sources of uncertainty in krill density estimates from ... acoustic surveys. The variance in system calibration with a standard sphere was evaluated in relation to ... with a standard sphere were estimated as-1.2 dB and ±0.3 dB, respectively. Uncertainty in estimating ... krill TS was then investigated through in situ measurements (Hewitt and Demer, 1991). The TS data ...

   Meeting Document : WG-EMM-95/72 : Autor(es): Demer, D.A.

6. The distribution of spatial management and Antarctic krill catch across pelagic bioregions in the Southern Ocean

   measures in the Southern Ocean.  We used the GIS in combination with catch data and the results of the 2007 ... Antarctic krill fishery, which accounted for 92% of catch biomass in the Southern Ocean in 2010/11 (CCAMLR ... in the occurrence of target species and level of fishing interest. There were important differences ... between pelagic bioregions in terms of the fraction of the bioregion that was open to fishing, and the ...

   Meeting Document : WG-EMM-12/15 : Autor(es): S.M Grant, S.L. Hill and P. Fretwell (United Kingdom)

7. Diet and trophic niche of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea, Antarctica

   stomach contents of specimens collected in the Ross Sea (71°–77°S, 165°E–180°) in January–March 2008 ... of prey in stomachs, fish (silverfish and lanternfish) and krill dominated diet overall (48% and 22 ... by silverfish occurred mainly in the extreme south-west of the region and near the continental slope ... . By weight, krill identified to species level in silverfish stomachs were predominantly Euphausia ...

   Meeting Document : WG-EMM-12/54 : Autor(es): M.H. Pinkerton, J. Forman, S.J. Bury, J. Brown, P. Horn and R.L. O’Driscoll (New Zealand)

8. Assessment models for Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 SSRUs 88.2C–H for the years 2002–03 to 2012–13

   Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 covering SSRUs 88.2C, D, E, F, G, and H (SSRUs ... ), down-weighting the age data (R4), and having annual age length keys in the north (R5). The stock ... in 2010, 2011 and 2012 suggest a much lower biomass, and data from tags released from 2004 to 2009 ... biomass than previously estimated, mainly due to the signal in the last three years of tag data. These are ...

   Meeting Document : WG-FSA-13/52 : Autor(es): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)

9. An updated spatially explicit population dynamics operating model for Antarctic toothfish in the habitable depths of the Ross Sea region

   model for Antarctic toothfish in the Ross Sea region, for a medium scale spatial resolution (189 spatial ... cells) covering the Ross Sea region. We build on the previous working medium-scale model in which the ... population was restricted to those cells in which at least 5% of cell area was of a depth deemed suitable as ... unsatisfactory in previous models, with a much flatter maturity ogive than that derived through histology. In the ...

   Meeting Document : WG-SAM-14/31 : Autor(es): S. Mormede, A. Dunn, S. Parker and S. Hanchet (New Zealand)

10. The use of electronic monitoring camera system for the toothfish fishery in CCAMLR Subarea 48.3: a study case to help CCAMLR

    fishery around CCAMLR Subarea 48.3 have, to date, been limited to in situ line observations conducted by ... assessment and management of the fishery. This independent estimation of the total catch in the fishery ... was installed on a longliner targeting toothfish in CCAMLR Subarea 48.3. This system provided 100% of ... divided in settings and hauling operations where at-sea observations were matched with video footage ...

    Meeting Document : WG-FSA-14/27 : Autor(es): R.A. Benedet (United Kingdom)

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